Apple and Microsoft are now both worth more than $4T

In a remarkable achievement, both Apple and Microsoft have now surpassed a market valuation of $4 trillion, marking a significant milestone in the tech industry. This is the first occasion where Apple has crossed the $4 trillion threshold, joining the exclusive ranks of only two other companies—Nvidia and Microsoft—who have previously reached this landmark. Microsoft initially hit the $4 trillion mark in July, although its valuation dipped slightly to $3.9 trillion before rebounding to $4 trillion once more on Tuesday. This resurgence has been fueled by the announcement of a new partnership with OpenAI, which has reinvigorated investor confidence. Apple's path to this milestone has been nothing short of impressive. The tech giant achieved a $1 trillion valuation in 2018, followed by $2 trillion in 2020, and then $3 trillion in 2022. Recently, the launch of the iPhone 17 series has been a catalyst for its stock surge, indicating strong sales that outpace earlier models. The company is set to unveil its fourth-quarter results for 2025 on October 30. On the other hand, Microsoft continues to thrive, largely driven by the increasing demand for its Azure cloud services. These services not only provide access to OpenAI's advanced language models but also the computational resources required for training AI systems. Notably, Microsoft disclosed that its 27% stake in OpenAI is now valued at approximately $135 billion. The company is scheduled to announce its quarterly earnings on Wednesday. Meanwhile, Alphabet, the parent company of Google, is not far behind in this race, currently trading with a market capitalization of around $3.25 trillion, inching closer to the coveted $4 trillion mark.